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Belt came off when water pump failed (gear Broke off) Need to reset Cam and Crank to proper timing positions. How do I tell if I am at TDC on #1 and on the compression stroke without the belt attached???
cams and crankshaft moved excessively, the engine turned through 2 cycles still at tdc, but not sure if it is on compression or exhaust strokecams and crankshaft moved excessively, the engine turned through 2 cycles still at tdc, but not sure if it is on compression or exhaust stroke
AnonymousMar 12, 2014
Changed the timing belt, but the cams and crankshaft moved excessively. after installing the timing belt, I manually turned the engine through 2 revolutions and still at TDC but not sure if the engine is on compression or exhaust stroke. How do I verify that it is on the compression strokeChanged the timing belt, but the cams and crankshaft moved excessively. after installing the timing belt, I manually turned the engine through 2 revolutions and still at TDC but not sure if the engine is on compression or exhaust stroke. How do I verify that it is on the compression stroke
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Pull #1 spark plug and rotate the engine until you hear air rush out of the cylinder, (plug the hole with your finger if you can), then look at the timing mark, it will be close to TDC
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I THINK THE CAMSHAFT SPROKECTS WORKS AT INTAKE, AND EXHAUST CHECK "I" IS FOR INTAKE AND "E" IS FOR EXHAUST, AND CONFIRM THE POSITION OF THE VALVES - EXHAUST CAMSHAFT IS CLOSE TO THE WALL, AND INTAKE CAMSHAFT IS CLOSE TO RADIATOR. IF YOU DONT SEE MARKS, THE ONE THAT GOES AT EXHAUST GEARS COVERED. AND INTAKE OPPOSITE.
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The pistons dont hit the valves on this engine so if the belt broke you should be able to just replace it. I cant remember the timing marks off hand but the crank definatelly has a notch that lines up with a mark on the timing case. I think under the crank gear, I think the cam lines up upright. At least you cant do engine damage if you get it wrong.
Hello tim42220: y name is Roger and I will help. If the timing belt does not turn when you crank the engine the belt is bad. The belt has a habit of striping the teeth of a the crankshaft gear. This engine shows to be a non-interference engine. That means if the belt breaks the valves should not bend. This is something you should be able to do if you are mechanically inclined. Main thing is to be sure all timing marks are right. I would stronglyrecommend replacing the water pump at the same time. The water pump is turned by the timing belt. Should the water pump go bad it will also damage the timing belt. They do make a timing belt kit that includes the belt and all new timing belt idler pulleys. You will need to reload the belt tension-er. This is the worst part as it is hard to reset the plunger. Easier to by a new one but they are not cheap. If you look at the new belt you should see two solid stripe markings and one stripe that is a dotted line.I would also replace the camshaft seals as they are the reason for the oil leaking onto the timing belt. When installed correctly the marks align with the timing marks on the engines cam and crankshaft. Enclosed is a picture of the timing marks.Should you need further help please just ask. Please rate your answer. This way I know it helped. Thank You for using Fix Ya. Roger
Just make sure the timing belt is on properlyy, lining up the cam and crank in proper position to each other. The engine willstart when fully assembled because the electrical has not be altered. If it has a crank position sensor , be sure to put it back on after cleaning it and the connector.
I ASSUME you have a 4 cylinder engine? The crank will have a mark to line it up pn TDC. The cam gear will have a small hole, line it up to the 12 o'clock position and there is a small dot on the end of the head that it will line up to when you look through that small hole. Be sure to proplerly tension the timing belt. Its a good idea to reseal the cam, crank and oil pump seals while the engine is apart.
you will need a impactgun or a way to hold pulley and then get bolt loose. before you take the belt off, turn the crank until the cam is lined up. there is a small hole on the cam gear, this will be at 12'oclock and a mark is directly behind it.(look through the hole to see mark) then look where the crank gear is, there will be a mark to line it up at TDC. to do th ebest job, replace the cam and crank seals, water pump and reseal the oil pump. replace the tensioner pulley.be sure to tension the belt correctly.
There is a small cover on the bottom center of the transmission. It's held in by 2, 8mm bolts.
To change the timing belt: first place the right side of the vehicle on
a jack stand and remove the right front tire. Remove the plastic cover
inside the wheel well to expose the harmonic balancer. Remove the
serpentine belt (standard 3/8" rachet will set in the belt tensioner to
relieve tension). Remove the harmonic balancer (19mm). Place a jack
under the engine on the right side of the vehicle, then remove the
engine mount from the top of the fender well, (17mm deep well socket
and 17mm wrench required) it is not necessary to remove the mount from
the side of the engine. Remove the timing cover, (10mm) it has 2 nuts.
Loosen the timing belt tensioner, (10mm) then pry it away to relieve
the tension. Slide the timing belt off of the cam gear.
To
position the new belt, the cam gear has a arrow on it, and the cylinder
head has a small dot. Align the arrow with dot, and make sure it is
aligned (the arrow must point up). The crank gear has a notch and the
engine has a groove to align the notch. Again, make sure the notch and
groove are aligned (they again will be up). Place the new timing belt
in position around the crank gear, the water pump and belt tensioner
and leave the slack at the top. Again relieve any tension from the belt
tensioner, and slide the belt on to the cam gear. Place a slight bit of
tension on the belt and tighten the belt tensioner. Use the 19mm bolt
from the harmonic balancer and turn the engine 2 complete turns and
verify that the cam gear and crank gear are in their proper positions
and aligned with the dots and notches. After 2 complete turns of the
engine, and verifying everything is still aligned, re-assemble in
reverse. No further adjustment is necessary.
Note:There is no
timing adjustment for this vehicle, and if you are not properly aligned
on the cam gear and crank gear it will not run properly.
To change the timing belt first place the right side of the vehicle on
a jack stand and remove the right front tire. Remove the plastic cover
inside the wheel well to expose the harmonic balancer. Remove the
serpentine belt (standard 3/8" rachet will set in the belt tensioner to
relieve tension). Remove the harmonic balancer (19mm). Place a jack
under the engine on the right side of the vehicle, then remove the
engine mount from the top of the fender well, (17mm deep well socket
and 17mm wrench required) it is not necessary to remove the mount from
the side of the engine. Remove the timing cover, (10mm) it has 2 nuts.
Loosen the timing belt tensioner, (10mm) then pry it away to relieve
the tension. Slide the timing belt off of the cam gear.
To
position the new belt, the cam gear has a arrow on it, and the cylinder
head has a small dot. Align the arrow with dot, and make sure it is
aligned (the arrow must point up). The crank gear has a notch and the
engine has a groove to align the notch. Again, make sure the notch and
groove are aligned (they again will be up). Place the new timing belt
in position around the crank gear, the water pump and belt tensioner
and leave the slack at the top. Again relieve any tension from the belt
tensioner, and slide the belt on to the cam gear. Place a slight bit of
tension on the belt and tighten the belt tensioner. Use the 19mm bolt
from the harmonic balancer and turn the engine 2 complete turns and
verify that the cam gear and crank gear are in their proper positions
and aligned with the dots and notches. After 2 complete turns of the
engine, and verifying everything is still aligned, re-assemble in
reverse. No further adjustment is necessary.
Note:There is no
timing adjustment for this vehicle, and if you are not properly aligned
on the cam gear and crank gear it will not run properly.
not fun. Have to take off all the belt driven stuff, Alternator ps pump etc. undo the bolts holding the cover in place, remove the cover and the belt will be under that. Put something in place to release the tensioner and remove the belt carefully so you dont move the cam or crank. slide on the new belt release the tensioners and put the cover and belt driven stuff back. I would recommend a new water pump while you are in there. they arent that expensive and might as well do it now than do the whole works again if it fails. new tensioners now a bad idea either.
cams and crankshaft moved excessively, the engine turned through 2 cycles still at tdc, but not sure if it is on compression or exhaust stroke
Changed the timing belt, but the cams and crankshaft moved excessively. after installing the timing belt, I manually turned the engine through 2 revolutions and still at TDC but not sure if the engine is on compression or exhaust stroke. How do I verify that it is on the compression stroke
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